Polish result and upload styling

app.py

@@ -1093,6 +1093,16 @@ h1{
   border:1px dashed #94a3b8!important;
 }
 
+#structure-file,
+#structure-file .block,
+#structure-file .wrap,
+#structure-file label,
+#structure-file .float,
+#structure-file button .wrap,
+#structure-file button .icon-wrap{
+  background:#ffffff!important;
+}
+
 #structure-file svg{
   color:#2563eb!important;
 }
@@ -1132,7 +1142,7 @@ h1{
   min-width:34px;
   height:24px;
   border-radius:9999px;
-  background:#0f172a;
+  background:#10b981;
   color:#fff !important;
   font-size:12px;
   font-weight:700;